發(fā)布時間：2018-03-22 21:17

  本文選題：履帶起重機　切入點：變幅機構(gòu)　出處：《吉林大學》2011年碩士論文　論文類型：學位論文

【摘要】：論文在分析當前國內(nèi)外履帶起重機產(chǎn)業(yè)技術(shù)發(fā)展現(xiàn)狀和趨勢的基礎(chǔ)上,結(jié)合企業(yè)某款履帶起重機產(chǎn)品的開發(fā),首先詳細介紹了履帶起重機結(jié)構(gòu)組成和工作原理,分析了履帶起重機總體設(shè)計內(nèi)容及步驟。 在詳細分析現(xiàn)有履帶起重機總體設(shè)計輸入的不足之處的基礎(chǔ)上,在履帶起重機總體設(shè)計中提出了“產(chǎn)品定義”的概念,重點分析了實現(xiàn)產(chǎn)品定義的技術(shù)工具:性能指標體系,并指出了產(chǎn)品定義的意義。 在提升機構(gòu)匹配計算、變幅機構(gòu)匹配計算、回轉(zhuǎn)機構(gòu)匹配計算、行走機構(gòu)匹配計算過程中,本文并沒有一貫的羅列常用的公式,而是以提升機構(gòu)匹配為例,論述了依據(jù)速度、拉力等數(shù)據(jù)調(diào)整元件參數(shù)的技巧,實現(xiàn)了在匹配計算中靈活選型滿足設(shè)計輸入的目的。 在臂架組合設(shè)計中,論文著重論述了臂架的受力分析和內(nèi)力計算,這是精確計算臂架強度和穩(wěn)定性的基礎(chǔ),但在實際工作中卻因為計算復雜而不顧計算精度進行簡化。 履帶起重機整機起重性能是指不同臂長不同幅度下的起重能力。整機起重性能由臂架強度與穩(wěn)定性、整機抗傾覆穩(wěn)定性、回轉(zhuǎn)支承性能、機構(gòu)起重能力及其它重要的受力構(gòu)件強度與穩(wěn)定性決定的。本文論述了整機額定起重性能生成方法,并著重論述了起重性能曲線的含義,根據(jù)曲線特點判斷結(jié)構(gòu)的合理性及結(jié)構(gòu)調(diào)整的思路。 最后論文以履帶起重機總體開發(fā)理論計算為基礎(chǔ),開發(fā)了面向設(shè)計工作人員的履帶起重機整機計算程序,實現(xiàn)了總體快速設(shè)計,并成功應用于實際履帶起重機產(chǎn)品開發(fā)中。因此,本論文的研究成果具有重要的理論意義和工程實用價值。
[Abstract]:Based on the analysis of the present situation and trend of the crawler crane industry at home and abroad, the structure and working principle of the crawler crane are introduced in detail, combining with the development of a certain crawler crane product in the enterprise. The contents and steps of the overall design of crawler crane are analyzed. Based on the detailed analysis of the inadequacies of the general design input of the crawler crane, the concept of "product definition" is put forward in the overall design of the crawler crane, and the technical tool to realize the product definition: the performance index system is analyzed emphatically. The significance of product definition is pointed out. In the process of matching calculation of lifting mechanism, amplitude changing mechanism, rotating mechanism and walking mechanism, this paper does not always list the commonly used formulas, but takes the matching of lifting mechanism as an example to discuss the basis speed. The technique of adjusting component parameters by pulling force and other data realizes the purpose of flexible selection to meet the design input in matching calculation. In the design of jib combination, the stress analysis and internal force calculation of jib are emphasized, which is the basis of accurate calculation of strength and stability of boom, but it is simplified in practice because of the complexity of calculation. The lifting performance of crawler crane refers to the lifting capacity under different arm length and amplitude. The lifting performance of the whole crane is determined by the strength and stability of the boom, the stability of the whole machine against overturning, and the performance of the slewing support. In this paper, the method of generating the rated lifting performance of the whole machine is discussed, and the meaning of the lifting performance curve is emphatically discussed. The rationality of the structure and the train of thought of structural adjustment are judged according to the characteristics of the curve. Finally, based on the overall development theory calculation of crawler crane, the whole machine calculation program for design staff is developed, and the overall rapid design is realized. It has been successfully applied to the development of crawler crane products. Therefore, the research results of this paper have important theoretical significance and engineering practical value.
【學位授予單位】：吉林大學
【學位級別】：碩士
【學位授予年份】：2011
【分類號】：TH213.7

【引證文獻】

相關(guān)碩士學位論文 前1條

1 康凱;重載起重機履帶板用鋼熱處理工藝及性能研究[D];大連理工大學;2012年

，

本文編號：1650436